dover



H. W. DOVER.

HAND WHEEL.

APPLICATION FILED SEPT. so. 1920.-

Patented Mar. 28, 1922.

4 SHEETS-SHEET l.

H. W. DOVER.

HAND WHEEL.

APPLscATloN FILED SEPT. so. 1920.

H. W. DOVER.

HAND WHEEL.

APPLicATloN FILED sEPT.3o.1920.

Patented Mar. 28, 1922.

4 SHEETS-SHEET 3.

IIfw. DOVER.

HAND WHEEL. APPLICATION EILEIJ SEPT. 30. 1.920.

Patented Mar. 28, 1922.

4 SHEETS-SHEET 4.

/r/ VENTO? @man Wavzae' PATENT OFFRE,

HORACE VI ALTER DOVER, OF NORTHAMPTON, ENGLAND.

HAND WHEEL.

Speeiation Of Lettersatent .Patented Mar. 28, 1922.

Application led September 30, 1920. Serial No. 413,852.

To all whom it may concer/n Be it known that I, l'lonaon AlVAL'riin Doran7 a Brit-ish subject. of Holywooi'l, St. l ames, Northampton, England, have in` vented certain new and useful improvements in or Relating to Hand lVheels, of which the followingvis a speciiication.

This invention relates to hand wheels such for inst-ance as are employed for stecring motor `vehicles, for operating stop cocks, controlling aircraft, motor boats, gun mechanism, and for other purposes, and has for its object to obviate or reduce the use et cast parts and to cheapen the cost ot' construction According to this invention the nave ot' such a hand wheel is formed from a distance piece or distance pieces, two stamped metal plates and means for securing said plates the one abore and the other below said distance piece or distance pieces, said plates bcing so stamped that when the parts are as sembled, sockets are provided adapted to rcceive the inner ends of the arms or spokes ot' the wheel.

The arms may be solid or tubular and produced by casting, stamping, drawing or other method, but preferably each arm is formed in accordance with the invention set forth in the specification accompanying my application for Letters Patent Serial Number 413,851 by bending a sheet metal blank to the desired cross section of arm required, thc lateral marginal portions of the blank being inturned at what is to be, preferably, the underside of the arm, so as te forni a diaphragm across, or strengthening rib within, 'the arm.

In the accompanying drawings Figure l is a sectional elevation on the lino 1 1, Figure. 2 of the nave of a hand wheel accmding to one form oi this invention. and Figure is a plan thereof. Figure El is a. ....'iilar View to Figure l showing another form of the invention. Figures Il, 5 and 6 arc plan views of details, Figure 7 is a crosswsection on the line -T Figure Il. Figure 8 is a cross-section on the line 8-8 Figure 5, Fig ure 9 is a cross-section on the line 9--9, Figure 6, Figure l() is a sectional side View ot a wheel on a smaller scale and Figure 11 is a plan thereof, those parts of Figure 10 winch are to the right of the center line being shown in elevation and those parts to the left of Said line heilig shown in section on the line 10-10, Figure 1.1.

AAsshown in llligures l and 2 the nare is formed irom an annular distance piece (L having a pluralityv oi outwardly extending apertured lugs o and having its upper siin'iface curved con 'exly as shewn in l `igurc 1 two circular stamped'metal plates c Yand d each extending completely across the ann ular distance piece o and beyond the periphery thereof, and means tor securing said plates c and (l the one c above ll'ze otluvr. fl. below the annular distance piece c. The cent-ral portion ol. the upper plate .ff domed to contorni with the conrexity oi thc upper surface of the distance piece c, and the central portion of the lower plate (Z `is flat, whilst the circumferential marginal. portions of said plates c and (Z are crimped or corrugated correspondingly so that when the parts are assembled sockets are provided adapted to receive and tit closely around the inner ends of the arms or spokes e ol" the wheel and those parts oit said circn1nferential marginal portions ol the plates intermediate said sockets are heut towards one another so that their edges moet or overlap. The two plates c and (Z are formed with apertures to correspond with those in the lugs o of the annular dist-:nice picco u and each of the apertures in saldi-lugs l) is threaded throughout its .length and conntersunk at its upper end.` The parts are held together by bolts j cach threaded-at its opposite ends leaving a plain portion g to constitute a shoulder. Aiter the plates c and d have been placed in position the one, c, above and the other, al, below the annular distance piece a with their api-n'turcs registering with those in the lugs f7) the bolts are screwed into the threaded apertures in the lugs o until their shoulders abut against the ci-xntral portion of the under plate (l and fpreteral; l sitter (lic arms c have been placed in position in the sockets) the head et cach bolt is rivet-ed over as at 7i so to press the margin of the After the arms c ha 'e been placed in position, it they have not been so placed before the heads ot the oolts j" have been riveted over, pressure may be applied to the two plates c and Z so as to press the socket portions closely around the inner ends of the arms c and the parts may be rem dered more secure by brarin welding or the like at the junctions.

The arms e snown are tubular but prelerably each arm is of flattened oval crosss'ection `and the lateral marginal portions of the blank from which the arm is bent up are inturned so as to lie contiguous with one another and constitute a diaphragm or strengthening rib lying substantially along the minor axis of the cross-si-:cti-on. The inner end of each arm e may be shaped to conform with the configuration at lthe bottom o t the socket in the nave portion crit may be cut on. straight across as indicated in Figure 2 and at its outer end (not shown) it may be machined away at each side so as to form shoulders the central remaining part beingV passed trst through a suitably apertured washer, then through a corresponding aperture in one of the ehannelled members, from two of which, and a stiifening hand, the rinisportion of the wheel may be built up in accordance with my prior British Letters Patent No. 2623, 1906, and then through another suitably apertured washer disposed within said channelled member, after which the upper portion of the arm, which constitutes a tongue, is bent away from the lower portion so as to lie `l'lat against the .last mentioned washer. The end oi tharm and the washer may then be brazed, welded or otherwise united together and to the channelled member. The remainder ot the rim-portion is then built up in accordance with the above mentioned British Letters Patent No. 2623, 1906, and the whole with the exception of the underface of the central portion of the lower plate Z and those parts of: the bolts which project therefrom may be encased in a casing y' of celluloid cxonite, or similar material, or of a non-inflammable material capable et being moulded in a similar manner, applied according to any of the well-known methods otmanuiaciure (e. g. moulding).

It desired the rim-portion and the arms may be wrapped spirally with a tape of linen or other fabric after which the covering compound or vmaterial may be applied as above mentioned.

In some cases east or stamped solid or drawn tubular arms may be employed for the Wheel, but the `use of'arm's bent up as above set forth is preferable.

If it is desired that a hub may be formed in one with the wheel the two stamped plates c and l may be centrally apertured to correspond with the annular' distance piece a and to give passage to a hub (not shown) provided with a {iange adapted to contact with the dat annular remainder of the under plate d, said flange being apertured to correspond with said plates u, (t and distance piece a so that said plates c, d, distance piece n and iianged hub may be secured together by headed bolts passed therethrough troni beneath, the upper ends oi said bolts being riveted over as above set forth.

Alfter the plates and bolts are assembled (and preferably after the arms have been placed in the sockets) the contiguous parts oit' the heads of the bolts and the central portion ol the 'Lipper plate e are welded, brazed or otherwise united.

In the form of the invention shown in Figures il to ll the nave is 'formed 'from a stamped metal distance piece 7c having a plurality ot radially extending tongues m each slotted as at a and shouldered as at o, and having its upper surface curved convexly as shown in Figure 9, two stamped metal plates p and Q adapted to receive be` tween them the distance piece 7o and means itor securing said plates y) and g the one, p, above, and the other, Q, below the'distance piece 7c. The central portion of the upper plate p is domed and the central portion of the lower plate g is flat, whilst the circumferential marginal portions of said plates y) and Q are crimped or corrugated correspondingly so that when the parts are assembled sockets are provided by the radial extensions r and ks of the plates u and q respectively, iid sockets being adapted to receive and lit closely around the inner ends ol? the arms or spokes c of the wheel and those parts ol" the .circumfercntial marginal portions ol the plates intermediate said sockets are bent towards one another so that their edges overlap. r1lie distance piece Z: and the lower plate y are correspondingly apertured as at and u respectively to give passage tothe Shanks o'l bolts/v (Figure and the distance piece c is cupped adjacent the apertures t to accommodate the heads et said bolts which are held down in said cups by the upper plate p as shown in Figure i The distance piece la and the plates p and Q' are preferably stamped. so that when the inner ends of the arms e are placed in the sockets said arms e are -upwardly inclined, as shown in lFigures 3 and l0, and the median plane of the rim-portion is higher than that of the nave portion.

Each arm e is Yformed according to the invention set forth in the specification accompanying my application for Letters Patent Serial Number 413,851 and is of substantially flattened oval cross-section,

whilst the lateralmarginal portions w of f tbc blank from which the arm e is bent up are sharply inturned so Vas to he contiguous l Il (l with one another and constitute a diaphragm or strengthening rib lying substantially along the minor axis of the crosssection.

When the parts are assembled the tongues fm are fitted into the hollow arms e the slots n accommodating the portions w, and the inner ends of the arms abutting against the shoulders o so as to position and steady said arms. After the arms e have been placed in position and the parts assembled pressure may be applied to the two plates p and g' so as to press the socket portions closely around the inner ends of the arms e and the parts may be rendered more secure by brazing welding or the like at the junctions.

Preferably the rim-portion of the wheel is built up, in accorijlance with the inverntion set forth in the specilication accompanying my application 'for Letters Patent Serial lumbei` 113,853 of an annular outer peripheral portion ai of concave-convex cross-section and an annular inner peripheral portion constituted by two parts g/ and each of concavo-convex cross-section, arranged the one, y, within the other, a'.

The outer end of each arm c is machined away at each side so as to form. shoulders the central remaining part being passed through the parts y and .e and bent over as at 2land secured as set forth in the specilieation acconnpanying my application for Letters Patent Serial Number lill-5,851 aforesaid.

The whole, with the exception of the projet-ting portions of the bolts fz: may be encased in a casing j of celluloid, exonite, or similar material, or of a non-inflammable material capable of being moulded. in a similar manner, applied according to any of the well-known methods of manufacture (e. g. moulding). y

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is l. A hand wheel whereof the nave is formed from a distance piece, two undivided stamped metal plates and means for securing said plates the one above and the other below said distance piece, said plates being so stamped that when the parts are assembled sockets are provided adapted to receive within them the inner ends of the arms or spokes of the wheel, whilst those parts of the circumferential marginal portions of the plates intermediate of said sockets are pressed towards one another and constitute parts of the periphery of the nave parallel with the axis thereof.

2. A hand wheel whereof the nave is formed from distance pieces, two undivided stamped metal plates and means for securing said plates the one above and the other below said distance pieces, said plates being so stamped that when the parts are assembled sockets are provided adapted to receive within them the inner ends of the arms or spokes of the wheel, Whilst those parts of the circumferential marginal portions of the plates intermediate of said sockets are pressed towards one another and constitute parts of the periphery of the nave parallel with the axis thereof.

3. A hand wheel, as claimed in claim l, wherein those parts of the circumferential marginal portions of the plates intermediate of the sockets are pressed the one over the other. substantially as set forth.

'l. A hand wheel, as claimed in claim l, wherein the distance piece is constituted by a stamped plate domed centrally substantially as set forth.

5. A hand wheel as claimed in claim 3 wherein the distance piece is constituted by a stamped plate domed centrally, substantially as set forth.

6. A hand wheel, as claimed in claim 4.-, wherein the distance piece is formed with shouldered radial tongues, substantially as set forth.

T. A hand wheel, as claimed in claim 6, wherein the tongues of the distance piece are slotted to accommodate the inturned marginal portions of the blanks from which the arms or spokes of the wheels are bent.

HORACE WALTER DOVER. 

